**Core Concept**
Whiplash injury is a type of musculoskeletal injury that occurs due to sudden acceleration-deceleration forces, typically resulting from rear-end motor vehicle collisions. This mechanism causes excessive stretching or tearing of ligaments, muscles, and tendons in the neck.

**Why the Correct Answer is Right**
The primary mechanism behind whiplash injury involves the sudden flexion and extension of the cervical spine, leading to overstretching or tearing of the posterior neck muscles and ligaments, particularly the supraspinatus and sternocleidomastoid muscles. The sudden force also causes a shearing force on the facet joints and intervertebral discs, further contributing to the injury.

**Why Each Wrong Option is Incorrect**
* **Option A:** While sports injuries can cause musculoskeletal trauma, they are not typically associated with the specific mechanism of whiplash injury.
* **Option B:** Head trauma, such as a concussion, may occur in conjunction with whiplash but is not the primary injury mechanism.
* **Option C:** While a fall from a height can cause significant musculoskeletal trauma, it is not typically associated with the specific mechanism of whiplash injury.

**Clinical Pearl / High-Yield Fact**
Whiplash injury often presents with diffuse neck pain, stiffness, and limited range of motion, but may not always have a clear radiographic correlate, making clinical correlation and history-taking crucial in diagnosis.

**Correct Answer:** C.